Smartphone



FIG. 1 is a front, bottom, and right side perspective view of a smartphone showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the smartphone that form no part of the claimed design. 

CLAIM The ornamental design for a smartphone, as shown and described. 